The lady at the vet was kind calling it an Elizabethan collar. So I think Sir Walter Raleigh, Robert Dudley and Francis Drake. Unfortunately dog looks rather more sad than courtierly swashbuckler.
Poor dog had growths on one eye and his back that had to be removed. Recovery period means no delicious scratches and rubs for him, hence the bucket.
It has severely altered his spatial sense and he can no longer slip though squeezy little spaces. He has however discover that the bucket/Elizabethan collar does have uses as one giant food scoop!